ITEM NAME:1X(HAKRC F3 Fly Tower Mini Flight Control OSD 20A Esc Brushless Cross MachiE6D5) 1X(HAKRC F3 Fly Tower Mini Flight Control OSD 20A Esc Brushless Cross MachiE6D5) 1X(Size: 27*25*7mm Screw hole spacing 20*20mm Screw hole diameter: 2mm Colour: Black material: metal Weight: 8.5g Eliminate welding, full wire insertion process, saving time and worry. F3 flight controller supports CF/BF firmware (default is BF 3.17) Integrated OSD with integrated 2A BEC. Support 2-4S power input, support external LED and buzzer alarm, self-contained battery voltage detection, support PPM/SBUS/DSM2/DSMX receiver, support OSD remote control tuning. MPU: MPU6000 Single chip microcomputer: STM32F303CCT6 BEC: 5V/2A output External LED External buzzer 1 TX1 and RX1 ports Packing list: 1 pcs miniF3 flight control)